Sport knife



FIG. 1 is a front elevational view of a sport knife;

FIG. 2 is a rear elevational view of the sport knife;

FIG. 3 is a left side elevational view of the sport knife;

FIG. 4 is a right side elevational view of the sport knife;

FIG. 5 is a top view of the sport knife;

FIG. 6 is a bottom view of the sport knife; and,

FIG. 7 is a top perspective view of the sport knife.

The broken lines depict portions of the sport knife that form no part of the claimed design. 

CLAIM The ornamental design for a sport knife, as shown and described. 